1HDC - Emergency Shelter - Quick and dirty idea. Two similarly shaped folded metal pieces nest one on top of the other. The top piece can rotate to open the space up and create a door or to close off the shelter completely. The roof becomes concave due to the folding process and has a hole in the center fitted with a water collection pitcher and filter. I imagine these being shipped flat on a truck and folded on site with a simple plywood/lumber mold and using human weight.